Refactor bootstrap controller to move filter behavior to entity

[elct9620]

Refactor to follow Clean Architecture:

Note

Controller (in stunmesh is UseCase) should not know the *config.Config

The current design will use config.Config.Interfaces is not a good design. Therefore we should stop using more.

To improve it, the Allowed Peers will filter by *entity.PeerFilterService to provide a high-level business logic.

allowPeers, err := ctrl.filterService.Execute(ctx, deviceEntity.Name(), device.PublicKey[:])

It will return all peers using object implements entity.PeerSearcher to look up any peers by device name. Then filter it by entity.PeerAllower which answers a entity.PeerId is found in config or not.